Allison Lake P-13124

General information

Waterway  Allison Creek
Current status  Active 
Type of facility Conventional Hydro
Mode of hydropower generation Run-of-river
Type of permit FERC License

FERC information

FERC docket # P-13124
Permit issued 7/27/2013
Permit expires 7/27/2063

Ownership and operation

Owner Copper Valley Electric Association, Inc.
Owner type Cooperative
Year first online (conventional hydro) 2016
Transmission or distribution system owner Copper Valley Elec Assn, Inc

Power and generating capacity

Number of units 1
Total capacity from hydraulic turbine-generator units within each plant 6.5 mW
Average annual net hydropower generation 14,556.0 mWH

FERC issued a license for this project to Cooper Valley Electric Association in August 2013.

The Allison Creek Project would consist of following new facilities:

  1. a 16-foot-high, 95-foot-wide concrete gravity diversion structure spanning Allison Creek with a 50-foot-wide spillway section;
  2. a screen intake;
  3. a 42-inch-diameter, 500-foot-long buried and 7,200-foot-long surface steel penstock;
  4. a 65 foot x 65 foot powerhouse with one 6.5-megawatt turbine/generating unit;
  5. a permanent 550-foot-long access road to the powerhouse;
  6. a 3.8-mile-long, 34.5-kilovolt transmission line connecting to the Copper Valley switching station near the Petro Star facility along Dayville Road; and
  7. appurtenant facilities.

After the construction of the dam, the project would be operate in a run-of-river mode. The average annual generation is estimated to be 23.3 gigawatt-hours.

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